Deep in the Heart of Mordor - NGC 7293 Collection_Royal Observatory Greenwich pocket watches the gnomon

the gnomon

Discover the incomparable beauty of the Northern Lights with this accessible guide for aspiring astronomers and seasoned night sky observers

The publisher William Darton specialised in publishing maps and books for children

Adventure and Exploration is packed full of you-couldn't-make-it-up true stories and adventure fiction classics

Part of our range of books for Out at Sea celebrations during LGBTQ+ History Month

Deep in the Heart of Mordor - NGC 7293 Collection_Royal Observatory Greenwich pocket watches the gnomonAstronomy Photographer of the Year is the largest international competition of its kind. Organised by the Royal Observatory Greenwich and sponsored by Insight Investment, the competition receives entries from photographers all around the world. It annually showcases the best space photography from a global community of astrophotographers. This image is the result of almost 64 hours of narrowband data of the Helix Nebula, gathered over two months from